PRECAUTIONS: See also Side Effects section.Before taking tetracycline, tell your doctor or pharmacist if you are allergic to it; or to other tetracyclines (e.g., doxycycline, minocycline), or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems.
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Brass is the generic term for a range of copper-zinc alloys with differing combinations of properties, including strength, machinability, ductility, wear-resistance, hardness, colour, antimicrobial, electrical and thermal conductivity, and corrosion-resistance.Read more.ickel silver alloys are made from copper, nickel and zinc, and can be regarded as special brasses. They have an attractive silvery appearance rather than the typical brassy colour. Read more. Beryllium copper is the hardest and strongest of any copper alloy, in the fully heat treated and cold worked condition.